Harrow or cultivator



(No-Model.)

O. LA'DOW.

HARROW OR YGULTIVATOR.

No. 294,792. Patented Mar. 11,1884.

INVENTOR I C'iwarlas: .Lwjow By 7?,

PATENT Fries.

CHARLES LA DOWV, OF ALBANY, NEV YORK.

.HARROW OR SPECIFICATION forming part of Letters C U LTI VATOR.

Patent N6. 294,792, dated March 11, 1884.

Application filed March 1, 1983. (No model.)

To all whom it may concern:

Be it known that I, CHARLES LA Dow, a

' citizen of the United States, residing in the city and county ofAlbany, in the State of New York, have invented certain new and usefulImprovementsin I-Iarrows or Cultivators, of which the following is aspecification.

The primary object of the present invention is to make a sulky-harrowhaving hinged dragbars which .are provided with shoes or runners inwhich barrow-teeth are adj ustabl y. secured, so that they may projectmore or less below the shoes which run upon the ground.

In the accompanying drawings, Figure 1 is, a detail sectional View,showing a single dragbar, shoe, and curved spring-tooth. Fig. 2is adetail View of the shoe or socket in which the curved tooth is adjustedand secured, and Fig. 3 is a plan view of a complete machine.

As the subject-matter of this application is confined exclusively to thehinged drag-bars, shoes, runners, or sockets, and teeth adjustablysecured therein, any description of the other part of the machine isdeemed unnecessary, because my invention may be applied to machineshaving frames of any suitable character, and, further, becausethemachine is fully illustrated and described in a division of thisapplication hereinafter referred to.

In the drawings, the drag-bars A are shown as split bars composed of twosections, a a, between which the sectional socket or shoe B is clampedby a bolt, 1). This shoe is provided with a curved slot, 0, and thespringtooth O is clamped therein and held in any desired position by thebolt 12.

Obviously the drag-bars may be made in one piece, and the shoe suitablysecured on the end thereof either by the clamping-bolt b, which alsoholds the-tooth, or it may he independently secured.

The form of tooth deemedby me most efficient and best adapted for myorganization is the spring-tooth illustrated in the drawings.

It will be understood that the shoes B run upon the ground and regulatethe. depth of penetration of the teeth, the latter being adjustable inthe shoes. so as to project more or less below them into the ground.

It is also obvious, and is indicated by dotted the curved tooth in thesocket also varies its angle of inclination to the earth, and themachine is thus adapted to varying conditions of the soil.

While I prefer to employ spring-teeth, itis obvious that rigid teeth maybe used with the same results-thatis, depth of penetration andpenetration and not to the change of angle.

This application is a division of my case No. 56,810, filed March 30,1882, and any subjectmatter herein described or shown but claimed inthat case is disclaimed herein.

I claim as my invention drag-bars A, hinged at their forward ends andprovided with shoes B at their rear ends to slide on the ground, withteeth adjustably secured to said shoes, so that said teeth may projectmore or less below the shoes into the ground, as shown and described.

2. The combination of the independent dragbar A and curved tooth O withthe shoe 13, slotted to permit the tooth to slide therein for thepurpose of setting it more or less deep in the ground below the shoe,substantially as described.

3. The combination of an independently-act ing drag-bar, and aspring-tooth curved above its attachment to the bar, substantially asdescribed, and capable of being angularly adj usted relatively to thebar, and adapted to be held as adjusted by means of clamping devicesapplied to the edges of the tooth.

In testimony whereof I have hereunto sub-. scribed my name this 27th dayof February, A. D. 1883.

CHARLES LA DOXV.

Vitnesses:

JAs. H. MELIOK, W. G. WAeeoNER.

lines in the drawings, that the adjustment of Variation of angle-and,further, that teeth of other shapes may be used, designed more especially to give an adjustment to the depth of 1. In a sulky-harrow, thecombination of

